ES2092708T3 - CIRCUIT PROVISION TO COVER SHORT-TERM VOLTAGE DROPS IN BATTERY POWERED RADIO DEVICES. - Google Patents

CIRCUIT PROVISION TO COVER SHORT-TERM VOLTAGE DROPS IN BATTERY POWERED RADIO DEVICES.

Info

Publication number
ES2092708T3
ES2092708T3 ES93103784T ES93103784T ES2092708T3 ES 2092708 T3 ES2092708 T3 ES 2092708T3 ES 93103784 T ES93103784 T ES 93103784T ES 93103784 T ES93103784 T ES 93103784T ES 2092708 T3 ES2092708 T3 ES 2092708T3
Authority
ES
Spain
Prior art keywords
voltage
voltage drops
battery powered
radio devices
term voltage
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
ES93103784T
Other languages
Spanish (es)
Inventor
Thomas Moliere
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Siemens AG
Original Assignee
Siemens AG
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Siemens AG filed Critical Siemens AG
Application granted granted Critical
Publication of ES2092708T3 publication Critical patent/ES2092708T3/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/54—Circuits using the same frequency for two directions of communication
    • H04B1/56—Circuits using the same frequency for two directions of communication with provision for simultaneous communication in two directions
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B1/00—Details of transmission systems, not covered by a single one of groups H04B3/00 - H04B13/00; Details of transmission systems not characterised by the medium used for transmission
    • H04B1/38—Transceivers, i.e. devices in which transmitter and receiver form a structural unit and in which at least one part is used for functions of transmitting and receiving
    • H04B1/40—Circuits
    • H04B1/44—Transmit/receive switching
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04B—TRANSMISSION
    • H04B15/00—Suppression or limitation of noise or interference
    • H04B15/005—Reducing noise, e.g. humm, from the supply

Landscapes

  • Engineering & Computer Science (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Signal Processing (AREA)
  • Transmitters (AREA)
  • Selective Calling Equipment (AREA)
  • Dc-Dc Converters (AREA)
  • Transceivers (AREA)
  • Emergency Protection Circuit Devices (AREA)
  • Charge And Discharge Circuits For Batteries Or The Like (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)

Abstract

The voltage step-up device is used for bridging short-time voltage drops in battery-supplied transceivers. For this purpose, a capacitor charged-up in non-transmitting mode is provided in the supply path of voltage-critical circuit sections, the voltage of which capacitor is added to the battery voltage in the supply path of the voltage-critical circuit sections during the transmitting bursts transmitted in the transmitting output stage. A capacitor is connected by switching elements driven by a controller for the transmitting bursts. <IMAGE>
ES93103784T 1992-03-20 1993-03-09 CIRCUIT PROVISION TO COVER SHORT-TERM VOLTAGE DROPS IN BATTERY POWERED RADIO DEVICES. Expired - Lifetime ES2092708T3 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE4209177 1992-03-20

Publications (1)

Publication Number Publication Date
ES2092708T3 true ES2092708T3 (en) 1996-12-01

Family

ID=6454660

Family Applications (1)

Application Number Title Priority Date Filing Date
ES93103784T Expired - Lifetime ES2092708T3 (en) 1992-03-20 1993-03-09 CIRCUIT PROVISION TO COVER SHORT-TERM VOLTAGE DROPS IN BATTERY POWERED RADIO DEVICES.

Country Status (5)

Country Link
EP (1) EP0561257B1 (en)
AT (1) ATE144663T1 (en)
DE (1) DE59304234D1 (en)
DK (1) DK0561257T3 (en)
ES (1) ES2092708T3 (en)

Families Citing this family (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE59506255D1 (en) * 1994-03-24 1999-07-29 Siemens Ag Radio
JP2762950B2 (en) * 1995-03-29 1998-06-11 日本電気株式会社 Power switching circuit
EP0798840B1 (en) * 1996-03-27 2002-01-30 Siemens Aktiengesellschaft Battery power supply
DE19638129C2 (en) * 1996-09-18 2001-05-23 Siemens Ag Method and circuit arrangement for controlling the output power of transmission output stages
US5960346A (en) * 1997-04-03 1999-09-28 Ericsson, Inc. Apparatus and method for reducing magnetic fields in radio telephones
ATE300812T1 (en) * 1997-11-14 2005-08-15 Option TELECOMMUNICATIONS CARD
CN1232046C (en) * 1999-03-23 2005-12-14 西门子公司 Synchronous load doubler-charge pump with integrated in-phase regulator
CN1223090C (en) 2000-04-03 2005-10-12 西门子公司 Method for operating oscillator and electric circuit arrangement and phase-locked loop
US7343175B2 (en) 2003-05-16 2008-03-11 Sierra Wireless, Inc. Peak current control in wireless network interface devices
EP2571150A3 (en) 2011-09-16 2018-02-28 Braun GmbH Power-supply circuit for an electrical appliance having a battery and a dc-to-dc converter

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3656052A (en) * 1971-01-04 1972-04-11 Honeywell Inf Systems Apparatus for providing regulated voltage during brief power interruptions
EP0032598B1 (en) * 1980-01-17 1983-05-11 Ascom Autophon Ag Portable paging receiver with a shift register and a direct current converter
JPS60230722A (en) * 1984-04-28 1985-11-16 Nec Corp Radio equipment

Also Published As

Publication number Publication date
DK0561257T3 (en) 1997-02-24
EP0561257A1 (en) 1993-09-22
EP0561257B1 (en) 1996-10-23
DE59304234D1 (en) 1996-11-28
ATE144663T1 (en) 1996-11-15

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